Troy lee designs ace starbreak jerseywhen summer heats up troy lee designs ace starbreak jersey keeps you cool via a full length zipper and lightweight moisture wicking polyester fabric as you sweat the soft knit pulls moisture away from your skin to keep you dry and comfortable so you can focus on crushing the climb troy lee also gave the ace a three compartment back pocket so youre able to stash water snacks and a mulitool without having to lug a pack around inside a half circle med